Building island out of reef.

http://www.nytimes.com/interactive/2015/07/30/world/asia/what-china-has-been-building-in-the-south-china-sea-2016.html?_r=0
With the rate that China is destroying the reef island. How long do you think it would change the ecosystem and it might destroy some of the best surf spots in SE Asia?
With the rate that China is destroying the reef island. How long do you think it would change the ecosystem and it might destroy some of the best surf spots in SE Asia?